How reliable are estimates of trace contaminants in rivers based on monthly grab samples? - Weber, Nikolaus; Lutterbach, Jounes; Hufnagl, Christine; Saracevic, Ernis; Kittlaus, Steffen; Kozlica, Katarina; Milačič Ščančar, Radmila; Krampe, Jörg; Zessner, Matthias; Zoboli, Ottavia (Environmental Sciences Europe, 2026)